Re: std.json cannot read an array floats back from file

[ketmar via Digitalmars-d-learn]

Yuri wrote:

Hi there,
consider the following simple use case:

   import std.json;
   float[] floats = [1,2,3];
   JSONValue j = "{}".parseJSON;
   j.object["floats"] = floats;
   std.file.write("test.json", j.toString);
   JSONValue jj = readText("test.json").parseJSON;
   jj.object["floats"].array[1].floating.writeln;

It is expected to print '2' in the console, however an exception is 
thrown:

std.json.JSONException@/build/ldc-I3nwWj/ldc-0.17.1/runtime/phobos/std/json.d(235): 
JSONValue is not a floating type

while the below works fine:

   import std.json;
   float[] floats = [1,2,3];
   JSONValue j = "{}".parseJSON;
   j.object["floats"] = floats;
   j.object["floats"].array[1].floating.writeln;

any pointers to what could be going wrong?

'cause what you got back is `JSON_TYPE.INTEGER`. dunno why it is there at 
all, as JSON has no "integers" per se, but it read as integer, and 
`.floating` failed type checking.

so, write your own wrapper that will convert INTEGER/UINTEGER/FLOAT to 
`double`. i think this is the best solution (if there can be "best 
solution" with std.json at all).